diff --git a/packages/svelte/tsconfig.json b/packages/svelte/jsconfig.json
similarity index 98%
rename from packages/svelte/tsconfig.json
rename to packages/svelte/jsconfig.json
index 97f8819b28..c6aa281216 100644
--- a/packages/svelte/tsconfig.json
+++ b/packages/svelte/jsconfig.json
@@ -12,7 +12,6 @@
 		"verbatimModuleSyntax": true,
 		"types": ["node"],
 		"strict": true,
-		"allowJs": true,
 		"checkJs": true,
 		"paths": {
 			"acorn-typescript": ["./src/compiler/phases/1-parse/ambient.d.ts"],
diff --git a/packages/svelte/package.json b/packages/svelte/package.json
index 6947dbc169..651de67025 100644
--- a/packages/svelte/package.json
+++ b/packages/svelte/package.json
@@ -92,8 +92,8 @@
   "scripts": {
     "build": "rollup -c && node scripts/build.js && node scripts/check-treeshakeability.js",
     "dev": "rollup -cw",
-    "check": "tsc && cd ./tests/types && tsc",
-    "check:watch": "tsc --watch",
+    "check": "eslint --ext .ts --resolve-plugins-relative-to .",
+    "check:watch": "nodemon --watch src --ext ts --exec 'npm run check'",
     "generate:version": "node ./scripts/generate-version.js",
     "prepublishOnly": "pnpm build"
   },
@@ -106,8 +106,12 @@
     "@rollup/plugin-virtual": "^3.0.2",
     "@types/aria-query": "^5.0.3",
     "@types/estree": "^1.0.5",
+    "@typescript-eslint/eslint-plugin": "^6.15.0",
+    "@typescript-eslint/parser": "^6.15.0",
     "dts-buddy": "^0.4.0",
     "esbuild": "^0.19.2",
+    "eslint": "^8.56.0",
+    "nodemon": "^3.0.2",
     "rollup": "^4.1.5",
     "source-map": "^0.7.4",
     "tiny-glob": "^0.2.9"